package db8;

public abstract class Student {
    int no;
    String name;
    String sex;
    int age;
    public Student(){

    }
    public  Student(int no,String name,String sex,int age){
        this.age=age;
        this.no=no;
        this.sex=sex;
        this.name=name;
    }
    public abstract double getGrade();
}
